import React, { Component } from 'react'

class Top extends Component {
    render() { 
        let { list, i, clickBtn } = this.props
        return (
            <div>
                <ul>
                    {
                        list && list.length ? list.map((item,index) => {
                            return <li key={index} className={i===index?'active':''} onClick={() => {
                                clickBtn(index)
                            }}>
                                {item.title}
                            </li>
                        }) : <div>暂无数据</div>
                    }
                </ul>
            </div>
        )
    }
}
 
export default Top;